diesel pest

This is from a w123 240d that has sat outside since at least 2008. During re-animation all fluids and filters (amonst lots of other stuff) were changed - except the fuel. The tank was full to the brim, so we were slightly optimistic it might have survived, even though the fuel was nearly black...

This is a diesel pre-filter on a 240d (w123) after only about 850km/530 miles. This is the debris that was left on the tray after I tried to drain the pre-filter: There was still plenty of stuff in the pre-filter that refused to leave. I have save the main filter and will cut it open...